Https://apps.nextcloud.com/apps/tasks seems like it might meet your needs. Source: over 1 year ago

NC Deck (and, very shortly, NC Tasks) to organise my tasks / todos. Source: over 1 year ago

Also, there are probably a few more lightweight and Trello-like systems for Kanban boards:

  - Nextcloud: also has some apps, like https://apps.nextcloud.com/apps/tasks and https://apps.nextcloud.com/apps/deck that, while basic, can be really easy to get started with if you already have Nextcloud.

- Source: Hacker News / almost 2 years ago

I use Nextcloud for managing tasks in the browser, but that requires a Nextcloud server. Https://apps.nextcloud.com/apps/tasks. Source: about 2 years ago

Use orgzly as my org-agenda, only reads gtd.org, work.org, and calendar.org I have recreated all my org-agenda views I care about as orgzly searches. Source: 12 months ago

- digital world,, Emacs Org Mode with Orgzly and Syncthing (to synchronize between devices). Source: about 1 year ago

(Orgzly)[https://orgzly.com/], a getaway drug to emacs,with (Syncthing)[https://syncthing.net/]. Source: about 1 year ago

Orgzly - The most featureful. An unfortunate mechanism that can't be turned off saves over your file with re-done spacing -- blank lines are added between headlines automatically, which isn't everyone's style nor is it Org specification. This clogs git, if you're using version control, with changes that are just whitespace. One may notice a toggle to turn off adding blank lines between headlines, but that just... Source: about 1 year ago

There are some decent mobile apps Https://orgzly.com/. Source: about 1 year ago